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Centrestack CVE-2023-26830

HIGH
Unrestricted Upload of File with Dangerous Type (CWE-434)
2023-03-31 cve@mitre.org
7.2
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V5 - File Handling File type validation, storage isolation
MITRE ATT&CK

2 techniques across 2 tactics: Command and Control, Persistence

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.2 (HIGH). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could upload malicious files that can be executed on the server by sending crafted requests to the affected application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.1% exploitation probability (EPSS)

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AnalysisAI

An unrestricted file upload vulnerability in the administrative portal branding component of Gladinet CentreStack before 13.5.9808 allows authenticated attackers to execute arbitrary code by. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. An unrestricted file upload vulnerability in the administrative portal branding component of Gladinet CentreStack before 13.5.9808 allows authenticated attackers to execute arbitrary code by uploading malicious files to the server. Affected products include: Gladinet Centrestack. Version information: before 13.5.9808.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.2 HIGH
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

An unrestricted file upload vulnerability in the administrative portal branding component of Gladinet CentreStack before 13.5.9808 allows authenticated attackers to execute arbitrary code by uploading malicious files to the server.

Threat Intelligence Overview

EPSS Score
1.1%
Top 39% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 1.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

57
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +36
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:a:gladinet:centrestack:*:*:*:*:*:*:*:*
CVE-2025-30406 CRITICAL POC
9.0 Apr 03

Gladinet CentreStack contains a deserialization vulnerability caused by a hardcoded machineKey in the portal, allowing u

CVE-2025-11371 HIGH POC
7.5 Oct 09

Unauthenticated local file inclusion in Gladinet CentreStack and TrioFox (versions up to 16.7.10368.56560) allows remote

CVE-2025-14611 HIGH POC
7.1 Dec 12

Unauthenticated arbitrary local file inclusion affects Gladinet CentreStack and Triofox deployments before 16.12.10420.5

CVE-2023-26829 CRITICAL POC
9.8 Mar 31

An authentication bypass vulnerability in the Password Reset component of Gladinet CentreStack before 13.5.9808 allows r

CVE-2026-54363 CRITICAL
9.3 Jul 30

Unauthenticated remote code execution in Gladinet CentreStack before 17.5 stems from a hardcoded cryptographic key (a st

CVE-2026-54367 HIGH
8.8 Jul 30

Authentication bypass in Gladinet CentreStack before 17.2 lets unauthenticated remote attackers read, write, and delete

CVE-2026-54365 HIGH
8.7 Jul 30

Unauthenticated OS user-account creation in Gladinet CentreStack before 17.3 lets remote attackers abuse an insecure des

CVE-2026-54368 HIGH
8.7 Jul 30

SQL injection leading to remote code execution in Gladinet CentreStack before 17.4 lets authenticated users inject arbit

CVE-2026-54366 HIGH
8.7 Jul 30

Out-of-band file exfiltration in Gladinet CentreStack before 17.4 lets unauthenticated remote attackers read arbitrary s

CVE-2026-54364 MEDIUM
6.9 Jul 30

Session variable injection in Gladinet CentreStack before version 17.4 allows unauthenticated remote attackers to bypass

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